Author Topic: synthy filters for guitar..  (Read 31691 times)

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nick d

Re: synthy filters for guitar..
« Reply #140 on: December 13, 2015, 02:28:59 PM »
       Glad you like it ! Alas , I did not do a layout as such - more of a " tale that grew in the telling " kind of thing . Never really had the patience to learn how to do proper layouts !

intergalatico

Re: synthy filters for guitar..
« Reply #141 on: September 10, 2017, 07:16:02 AM »
Hello guys,

So lucky to find this post! Thx nick d for the schematic!

I am about to build it but I really want to control it with a CV pedal that works with 0-5V instead of a expression pedal.

How can I modify the expression pedal input to be able to use my CV pedal?

Thank you!

Cheers

nick d

Re: synthy filters for guitar..
« Reply #142 on: September 10, 2017, 04:01:11 PM »
          The CV from your pedal should go to the R connection on my schemo . You may have to make other changes , that would depend on which CV pedal you have .

intergalatico

Re: synthy filters for guitar..
« Reply #143 on: September 11, 2017, 02:42:05 AM »
Thank you for answer!

My CV pedal have Ground on the sleeve and + (0-5v) on the tip.

Do you mean I can just connect my tip to the 47k resistor that goes to circuit? And the sleeve goes to the 47k resistor that goes to ground?

Using a expression pedal, I suppose we will be sending something like 0-9v to the circuit. Using my CV Pedal that sends 0-5v, l suppose I wouldn't get the whole range of the parameter, right? (I am sorry, I don't have the skils to calculate this by myself. I can put the things together but I can't develop and change things).

I appreciate any help!

Cheers

nick d

Re: synthy filters for guitar..
« Reply #144 on: September 11, 2017, 09:29:48 AM »
 Tip to 47k , yes . Not sure about the gnd , though .

intergalatico

Re: synthy filters for guitar..
« Reply #145 on: September 12, 2017, 03:10:39 AM »
Thank you, nick_d!

I can't find a 47k pot... It is ok to use one 50k instead?


bluebunny

Re: synthy filters for guitar..
« Reply #146 on: September 12, 2017, 03:31:49 AM »
Yep.
Ohm's Law - much like Coles Law, but with less cabbage...

intergalatico

Re: synthy filters for guitar..
« Reply #147 on: October 29, 2017, 06:31:14 AM »
Hey Guys,

I just finished on the vero board and works fine! Thank you for this! The CV works too!

The 2 lfo's are a great plus. But... playing around gave me the wish to have a envelope follower to make the freq  follow my pic attack. I don't wanna a auto wah but more like the envelope on the synths. It would be great to have control of the swell of the frequency and also the sensitivity of the attack.

Do somebody knows a envelope circuit like this that I could include on this great filter?

Thank you so much!

StephenGiles

Re: synthy filters for guitar..
« Reply #148 on: October 29, 2017, 10:27:32 AM »
Hey Guys,

I just finished on the vero board and works fine! Thank you for this! The CV works too!

The 2 lfo's are a great plus. But... playing around gave me the wish to have a envelope follower to make the freq  follow my pic attack. I don't wanna a auto wah but more like the envelope on the synths. It would be great to have control of the swell of the frequency and also the sensitivity of the attack.

Do somebody knows a envelope circuit like this that I could include on this great filter?

Thank you so much!

If one reverse engineers an EH Riddle QBalls, you would have a very good envelope circuit!!!
Sometimes it is the people no one imagines anything of who do the things that no one can imagine.

intergalatico

Re: synthy filters for guitar..
« Reply #149 on: November 10, 2017, 11:36:07 AM »
Is done! And was worth the many work hours!


And here on my board:

Thank you for the circuit, nick!

Cheers!

ElectricDruid

Re: synthy filters for guitar..
« Reply #150 on: November 10, 2017, 12:30:05 PM »
That's beautiful. Nice work!

I love the Korg schematic graphics. It's funny how the different manufacturers have their own instantly recognisable house style. At one point I was thinking of taking the Sequential Prophet 5 voice schematic to a print shop to get a large version to hang on my wall. Maybe I read too many synth schematics? ;)

Tom

nick d

Re: synthy filters for guitar..
« Reply #151 on: November 10, 2017, 12:45:10 PM »
         Well done ! Excellent work !